| 引用本文: | 张书， 刘锦云， 王坤， 王敏， 郭阳.06Cr19Ni10不锈钢电刷镀前处理工艺的优化[J].中国表面工程,2015,28(1):76~82 |
| ZHANG Shu, LIU Jinyun, WANG Kun, WANG Min, GUO Yang.Optimization of Pretreatment Process of Brush Electro-plating on 06Cr19Ni10 Stainless Steel[J].China Surface Engineering,2015,28(1):76~82 |
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| 摘要: |
| 为优化不锈钢电刷镀前处理工艺，改善电刷镀镍层与奥氏体不锈钢基体间的结合力。以不锈钢电刷镀快速镍前处理工艺为对象，通过弯曲试验和热震试验探讨了硫酸型活化液（No.1）和盐酸型活化液（No.2）对基体结合力的影响，确定了活化液的种类和活化方式。同时，采用确定的活化组合，以镀层的结合力为考察指标，采用正交试验方法优化了No.2活化液的活化工艺参数及特殊镍打底层工艺参数。弯曲试验和热震试验结果表明：单独采用No.2活化液较单独使用No.1活化液效果好；No.2和No.1组合（No.2活化液反极性+No.1活化液反极性+No.1活化液正极性）活化镀镍层与不锈钢基体的结合力最好。正交试验结果表明：No.2活化液最佳工艺参数为活化电压12 V，活化时间20 s；最佳打底工艺参数为特殊镍电压12 V，特殊镍时间60 s；采用组合活化方式，在该优化工艺条件下获得的快速镍镀层，经过78次热震试验后镀层无脱落、起皮现象，镀层与不锈钢基体之间有良好的结合力。 |
| 关键词: 电刷镀； 不锈钢； 前处理 快速镍 |
| DOI：10.11933/j.issn.1007-9289.2015.01.012 |
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| Optimization of Pretreatment Process of Brush Electro-plating on 06Cr19Ni10 Stainless Steel |
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ZHANG Shu, LIU Jinyun, WANG Kun, WANG Min, GUO Yang1,2
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1. School of Materials Science and Engineering, Xihua University, Chengdu 610039;2. Engineering & Technology Department, AVIC Chengdu Engine（Group）Co., Ltd., Chengdu 610503
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| Abstract: |
| In order to optimize the pretreatment process of stainless steel brush plating and improve the bonding force between the brush plating nickel layer and the austenitic stainless steel substrate. The pretreatment process of the fast nickel coating on stainless steel was researched. The effects of the sulfuric acid activation fluid type (No.1) and hydrochloric acid activation fluid type (No.2) on the bonding force were researched by bending test and thermal shock test. Moreover, in the condition of determined activation combination, an orthogonal experiment was adopted to optimize the process parameters of No.2 activation and special nickel plating, targeting at an examination of the bonding force. The results of bending test and thermal shock test show that the activation effect is better when the coating is activated by No.2 activation fluid alone than that by No.1 activation fluid alone, and No.2 activation fluid used in together with No.1 activation fluid(No.2 activation fluid of reversed polarity + No.1 activation fluid of reversed polarity + No.1 activation fluid of positive polarity) makes the best bonding force. The orthogonal experiment result shows that the best process parameters of No.2 activation fluid is voltage 12 V, and time 20 s, and best process parameters of special nickel plating are voltage 12 V, and time 60 s. The fast nickel coating produced under the optimized conditions and activated by No.2 together with No.1 activation fluids does not fall off or peel after thermal shock experiments for 78 times, which shows better bonding force between the coating and the stainless steel substrate. |
| Key words: brush electroplating stainless steel pretreatment fast nickel |
